Projects per year
Abstract
This paper investigates energy efficiency and dynamic behavior through simulation and experiments of a compact electro-hydrostatic actuator system (EHA) consisting of an electric motor, external gear pump/motors, hydraulic accumulator, and differential cylinder. Tests were performed in a stand-alone crane in order to validate the mathematical model. The influence and importance of a good balance between pump/motors displacement and cylinder areas ratios is discussed. The overall efficiency for the performed motion is also compared considering the capability or not of energy recovery. The results obtained demonstrate the significant gain of efficiency when working in the optimal condition and it is compared to the conventional hydraulic system using proportional valves. The proposed system presents the advantages and disadvantages when utilizing components off-the-shelf taking into account the applicability in mobile and industrial stationary machines.
Original language | English |
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Article number | 12 |
Number of pages | 16 |
Journal | Actuators |
Volume | 9 |
Issue number | 1 |
DOIs | |
Publication status | Published - 25 Feb 2020 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Differential cylinder
- Efficiency
- Electro-hydrostatic actuator (EHA)
- Simulation
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Dive into the research topics of 'Effect of energy recovery on efficiency in electro-hydrostatic closed system for differential actuator'. Together they form a unique fingerprint.Projects
- 2 Finished
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EZE: Easy zonal hydraulics
Pietola, M. (Principal investigator), Hermansson, R. (Project Member), Lehto, J. (Project Member), Närvänen, V. (Project Member), Heikkinen, J. (Project Member), Calonius, O. (Project Member) & Korhonen, A.-K. (Project Member)
01/05/2019 → 31/08/2021
Project: Business Finland: Other research funding
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IZIF: Implementation of zonal integrated future fluid power systems
Hänninen, H. (Project Member), Minav, T. (Principal investigator), Heikkinen, J. (Project Member), DanaeeBarforooshi, S. (Project Member) & Kauranne, H. (Project Member)
01/10/2016 → 30/09/2018
Project: Academy of Finland: Other research funding